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Introduction to theoretical physics


Theoretical physics is a subject that studies the basic structure of matter and the basic laws of motion. It is not only the theoretical basis of physics, but also closely related to many important basic and frontier researches in physics and other fields of natural science. Theoretical physics by means of analytical analysis and numerical calculation, the research material at different levels of the basic laws of physics, the research content covers from high energy to low energy, from micro to macro even cosmic each frontier research fields, such as: quantum physics, elementary particle physics, nuclear physics, atomic and molecular physics, condensed matter physics, complex systems and astrophysics and cosmology. The major is mainly enrolled in the following research directions:


1. Quantum physics: Quantum mechanics is the basic law governing the movement of matter in the microscopic world. Its validity and accuracy are beyond doubt, but its conceptual basis has been under huge debate and disagreement since its birth. In this direction, some important fundamental problems of quantum physics will be discussed, including the wave-particle duality of microscopic particles, the quantum entanglement of two-particle, the evolution of wave function and the collapse of wave packet, the details of the quantum interaction between photons, electrons, atoms and other microscopic particles, etc.


2. Gravity theory and Nuclear Astrophysics: At the celestial and cosmic scales, gravity not only governs the motion of celestial bodies, but also determines the structure and evolution of celestial bodies. The study of gravity theory is a very active field in theoretical physics. Nuclear astrophysics mainly focuses on neutron stars, white dwarfs and other compact celestial bodies.


3. Biophysics: Biophysics applied physics concept, technology and method of research the relationship between biological structure and function at all levels, physical, physical and chemical process of life activity and the physical properties of material in the process of life activity performance, it is starting from the basic material structure and interaction, atoms in the molecular level to clarify a variety of complex life movement regularity and mechanism of the phenomenon. His research interests include bioinformatics, basic theory of nonlinear physics and complex dynamic behavior of biological systems.


4. Computational Condensed matter Theory: Condensed matter physics is a discipline that studies the structure, dynamic process and the relationship between condensed matter composed of a large number of particles (atoms, molecules, ions and electrons) and its macroscopic physical properties from a microscopic perspective. Computational condensed matter physics is to conduct computational research on low-dimensional condensed matter physics, spintronics, nanomaterials, solid quantum information, etc., using density functional theory, Monte Carlo method, molecular dynamics and other theoretical calculation methods. The main research topics include crystal defect and doping theory, surface catalysis mechanism, magnetic semiconductor materials and photovoltaic solar materials.


Main courses: Advanced Quantum Mechanics, General Relativity, Frontiers of Theoretical Physics, etc.




Introduction to condensed matter physics


Condensed matter physics is a subject that studies the structure, dynamic process and the relationship between condensed matter composed of a large number of particles and macroscopic physical properties from a microscopic perspective. To put it simply, in addition to solid phase materials such as crystals, amorphous and quasicrystals, condensed matter physics also includes dense gas, liquid and various intermediate condensed phases between liquid and solid. Its research level is from macroscopic, mesoscopic to microscopic. Its material dimensions range from three to low and fractional dimensions. The external environment is studied from conventional conditions to various extreme conditions, and so on. Condensed matter physics is closely related to materials science, electronic science, earth science, astrophysics, chemistry and life science, and is the most important, abundant and active branch of physics. Major achievements in many fields such as semiconductor, magnetism, superconductor and so on have played a key role in the field of modern high and new science and technology, providing a scientific basis for the development of new materials, new devices and new processes. One of the important characteristics of condensed matter physics is that the frontier research hotspots emerge one after another and the new cross-branch disciplines appear constantly. Its other important characteristic is close connection with production practice. Many research topics often have the nature of basic research and development and application research at the same time, and the research results are expected to be quickly transformed into productive forces.


Condensed matter physics has its own characteristics in theoretical, experimental and computational research.


1. Theoretical research


This major has a good tradition in condensed matter theory research, and has made outstanding achievements in theoretical research of quasicrystal physics, mesoscopic physics, phononic crystals, acoustic metamaterials, spintronics and other fields. It has published a number of academic monographs, which has a certain influence in domestic and foreign academic circles. For many years, the research work has been supported by various national natural science funds.


2. Experimental research


Research areas include superconductivity of condensed matter under extreme conditions, magnetoelectric multiferroicity, nano-magnetism, insulation-metal transition and hydrogen storage, field emission properties of nanomaterials, embedding physics and its electron and ion transport properties in lithium-ion battery materials, etc. The purpose is to explore the way to change the critical temperature under extreme conditions, accelerate the discovery of new energy materials with good performance in extreme environment, seek to improve the application performance of energy materials, and explore the feasibility of practical application under normal conditions. This direction has its own innovative multi-functional system which can simultaneously measure Raman spectrum, electric transport properties and AC susceptibility under different temperature and pressure environment, and has laser molecular beam epitaxy and sputtering coating equipment and lithium ion battery electrochemical performance testing equipment. The research was supported by project 985 of the Ministry of Education, National Natural Science Foundation of China and Key Research Fund of the Ministry of Education.


3. Computational research


The research direction is to study the physical properties of materials and design novel materials through computer simulation. Currently, the main research areas are structural stability, crystal defect and doping theory, catalytic mechanism of transition metal surface, and organic electronics. In particular, the research and design of high-performance magnetic semiconductor materials, solar cell materials, hydrogen storage materials, alloy catalyst materials, as well as the simulation of optical, electrical and magnetic phenomena caused by dynamic disorder and quantum coherence in organic molecular materials are involved. The major has complete scientific computing software, its own cluster computing center, abundant computing resources from Chinese Academy of Sciences and National Supercomputing Center, and has been supported by the National Natural Science Foundation of China, The Excellent Talents Support Program of The Ministry of Education, the 973 Project of the Ministry of Science and Technology, and the Innovation Group Project of the National Foundation of China. For more information, see http://www.compphys.cn.


Condensed Matter Physics major aims to cultivate high-level r&d personnel with solid physical foundation and strong innovation ability, especially in the design of new materials and the study of various properties and microscopic mechanism. After graduation, they can be engaged in teaching and scientific research of physics, continue to study for a doctor's degree in related fields, or engaged in applied research and technology development of new functional materials in enterprises.


Main courses: Advanced Quantum Mechanics, Theory of Solids, Computational Condensed Matter Physics, Quantum Statistical Physics, Progress in Condensed Matter Physics, Group Theory, etc.


Introduction to Acoustics


Acoustics is the science of the production, reception and propagation of sound waves and their interaction with matter. It has wide application prospects in communication and information technology, materials science, Marine technology, environmental science, chemistry and chemical engineering, medicine and life science and other fields. The development of this major adopts the combination of science and technology, the combination of basic research and applied research, and applies the foundation of science to the practical problems of engineering. In terms of the setting of research direction, combined with the international development frontier and the needs of the society, the major focuses on electroacoustics and hearing, acoustic signal processing and ultrasonic technology, and develops in multiple directions at the same time, forming a very distinctive major. Electroacoustics and hearing is one of the only two acoustic majors in domestic universities, and its research on binaural hearing and acoustic replay is in the leading level in China, and has been recognized by domestic peers. In the research direction of ultrasonic technology, the interaction between sound and medium, the propagation behavior of sound in medium, and the reinforcement and application of ultrasonic to process are studied.


The professional research fields of acoustics include electroacoustics, psychoacoustics, acoustic signal processing, indoor acoustics, ambient noise, musical acoustics, ultrasonics, bioacoustics, etc. In terms of scientific research work, carried out the national natural science fund project the general surround sound system and its heavy sound field of the research, the binaural spatial auditory model and the research of virtual surround sound system, the masking effect of psychoacoustics research, Ministry of Education funding project for excellent young university teachers research on virtual sound reproduction and its signal processing, Virtual auditory Environment and Research on Psychoacoustic Problems, Research on HDTV Sound System and General Surround Sound System, Virtual sound technology and its Application in digital Audio-visual products, Piano Sound Analysis and Improvement and other vertical research projects. At present, he has presided over a number of scientific research projects, such as the National Natural Science Foundation of China, the Natural Science Foundation of Guangdong Province, and the major science and technology special projects of Guangzhou. The major also cooperates with large domestic enterprises and hosts a number of horizontal scientific and technological development projects with sufficient research funds.


The major has a listening room in accordance with international (IEC) standards, a variety of acoustic measurement and subjective evaluation equipment, digital acoustic signal processing and recording equipment, in acoustic measurement, binaural hearing and psychoacoustics, audio signal processing and other experimental conditions have been in line with international laboratories of the same type. This major has close links with the national and international academic circles and enjoys a high reputation among the national acoustics profession.


The major of acoustics mainly recruits undergraduate students majoring in physics, communication and electronics. Candidates with basic knowledge in chemistry and chemical engineering are also welcome to apply for the direction of Ultrasonic and its application. This major focuses on strengthening the training of mathematical foundation, experimental skills, computer application ability and music art foundation, and focuses on cultivating the research ability and creativity of postgraduates. During the graduate student learning is mainly to study the theory of acoustics, the acoustic measurement technique, the acoustic signal processing, the electroacoustics, the principle of stereo, indoor acoustics, psychoacoustics and sound quality evaluation, the multimedia and digital audio technology, ultrasonics, the ultrasonic transducer and the design of the ultrasonic horns stem and design courses, And after the admission of graduate students to participate in the scientific research of this discipline.


Because the research direction can combine with the social demand, the employment situation of this major is very good in recent years. Graduates can engage in research and development in electro-acoustic (audio) technology, multimedia communications, etc. In particular, Guangdong is a big province of electroacoustic, 80% of the electro-acoustic manufacturers are concentrated in Guangdong, which is in urgent need of talents in this field. And this aspect of the domestic professional less, south China only this master and doctoral point.


Main courses: Theoretical Acoustics, Acoustic Measurement Technology, Acoustic Signal Processing.


Introduction to Optics


Optics is one of the oldest natural sciences, studying the nature of light, the transmission of light and the law of interaction between light and matter and its application. The year 2015 was designated by UNESCO as an International Light Year in recognition of the enormous and outstanding contribution of optics and related technologies to the health, communication, economy, industry and life of human society over the past thousands of years. All kinds of photoelectric products (optical fiber communication, solid lighting, cameras and so on) have entered into every household and become an inseparable part of our life. Adhering to the striving spirit of our predecessors, the faculty and staff of optics major in our school are based on the basic knowledge and technology of optics to learn, study and research, and apply what they have learned to expand the application of new knowledge and technology of optics, and pass on the knowledge, experience and skills acquired to the younger generation.


Optics is the discipline of zhujiang Scholars of South China University of Technology. There are seven specialized laboratories in this program, including one Guangdong Engineering Center and one guangdong key laboratory under construction. To this major research projects including project 973 and project 863 corpus, the national natural science funds, all kinds of natural science foundation of guangdong province, guangdong province and guangzhou city science and technology plan projects and enterprise horizontal topic, research in recent years, increasing year by year, in the international and domestic core journals also constantly improve the quality and quantity of the paper, And formed several distinctive research directions:


1. Micronano photonics. The research focuses on theoretical, experimental and applied research in photonic crystals, optical metamaterials, surface plasmon optics and other cutting-edge fields, as well as the development and application of new concepts, new methods and new technologies in micro-nano photonics. With the basic concepts of optics and photophysics as the starting point, it explores interdisciplinary areas such as nonlinear optics, quantum optics, laser technology, condensed matter physics, acoustics, materials science, chemistry and medicine, develops original theories and technologies, and develops applications in basic science, information, energy, environment, medicine and other fields.


2. Spectroscopy, optoelectronics, optoelectronic materials and Technology. The research fields include novel optical fiber materials and devices, photoelectric detection technology, LED lighting technology, laser-induced breakdown spectroscopy and Raman spectroscopy, opto-mechatronics technology, solar cells, photoelectric sensing and image processing technology, etc.


3. Quantum optics and nonlinear optics. Research content is the interaction of light with matter of quantum information, quantum physics, quantum control, and based on the nonlinear crystals and quasi nonlinear harmonic phase matching superlattice crystals and frequency conversion, nonlinear optics and laser technology, and the use of nano photonic structure and devices such as optical cavity to enhance all kinds of quantum optics and nonlinear optics effect.


4. Optical sensing, detection and microscopic imaging. Research using micro-nano structure enhance the intensity of light and matter interact, improve information and energy transmission, fluorescence, Raman, nonlinear, photoelectric conversion, conversion of field, such as the efficiency of the physical process, development of the photoelectric detector, optical sensing, super resolution optical microscopic imaging, and other important areas of application, development and biochemical detection, remote sensing and information recognition, cross in the field of biological medicine, etc.


5. Photoelectric information processing, recognition, transmission and optical communication technology. Studies the principle of optical communication network and technology, the engineering problems in optical fiber communication, image display and processing technology, optical instrument design, such as optical communication transmission key technologies, including fiber laser technology, WDM, fiber amplifier, optical passive components (new type of optical fiber, optical switch, waveguide, optical attenuator, etc.), etc. And the theoretical and experimental research of communication coding. The aim of this direction is to solve the key problems in practical application.


6. Optical tweezers. This study uses a variety of focused laser beams to capture, manipulate and arrange microparticles and study their dynamic behavior. Using optical tweezers technology as the media, we study the microscopic mechanical properties and physiological functions of biological systems such as protein, DNA, organelle and cell tissue, and expand the crossover with biomedical field.


7. Machine vision and ergonomics. The main research is to collect information through photoelectric equipment, and then process and analyze it through computer system, so that the equipment can obtain the cognition and understanding of the external world. Research will add knowledge formation, learning and fusion into machine systems, so that machines with intelligent characteristics and people have better interaction. The technology is widely used in industrial testing, robot walking, unmanned driving, virtual reality, reverse engineering and other fields.


8. Laser devices and Technology. His research interests include single-frequency fiber laser technology and devices, high-power fiber laser amplification, coherent optical communication, femtosecond fiber laser technology, etc.


The cultivation philosophy of this major is: Combination of technology, cultivate moral, intellectual, physical all-round development, has a solid optical and the basic theory of information science, grasp the photoelectric signal detection and optical information processing, laser science and technology, a new type of light source, optical fiber science and technology, micro photonics and technology, optical sensing, detection and imaging, graphics, image processing, such as the direction of the theory and application technology, Qualified for management, teaching, scientific research, product design and high-tech development in optical engineering, optoelectronics and optical communication and related electronics, information and computer fields.


In terms of employment, except for a small number of students who continue to pursue further studies and pursue doctoral degrees, most students can get jobs in companies and enterprises in the fields of optical manufacturing and processing, optical sensing and detection, communication, electronics, computers, mechanical and electrical equipment manufacturing, artificial intelligence and other fields after graduation. Good employment status, high student satisfaction.


There are 7 supervisors in this program who can recruit PhD students in optics and physical electronics. Interested students can have the opportunity to advance their PhD through 1+4 or 2+3 models.


Main courses: Principle of Optics, Optoelectronics, Special Optical Experiment.



Introduction to physical electronics


Physical electronics is an interdisciplinary subject combining physics and electronics, involving traditional electronics, modern physics, optoelectronics, quantum electronics, superconducting electronics, etc., and mainly conducting basic and applied research in the fields of optoelectronic engineering and information science and technology. The development of physics has a great impact on the concepts and methods of electronic engineering and information science, thus forming a new field of electronics and a new subject growth point. The research content of this major is as follows:


1. Information optoelectronics. The main research fields include high speed photoelectronic communication, quantum communication, etc.


2. Micro-nano optoelectronics. The research focuses on theoretical, experimental and applied research in photonic crystals, nanophotonics, optical metamaterials, surface plasmon optics, optical tweezers, nonlinear optics and quantum optics.


3. Semiconductor light-emitting devices and communication technology. The research contents include LD, LED active devices and their applications in optical communication.


4. Artificial photoacoustic microstructure physics. Research and explore new physical optical and acoustic artificial microstructure materials, new technology and new applications, inventing new materials and devices, optical, acoustic and explore the forefront of optical and acoustic interdisciplinary, acoustic, optical, fluid and solid mechanics, physical field research, using the optical implementation of the acoustic properties of the microstructure dynamic control, Or using the acoustic wave generated by artificial structure to control the movement of micro-nano particles in the flow field in real time.


5. Laser devices and technology. His research interests include single-frequency fiber laser technology and devices, high-power fiber laser amplification, coherent optical communication, femtosecond fiber laser technology, etc.


6. Signal detection and processing. Electronics and physics, information theory and computer methods, to analyze the causes of all kinds of signals and rules, the characteristics and correlation of the measured signal, study how to extract useful signal from a specific environment, explore the signal detection theory, new method and new technology, which is applied to various subject areas.


7. Physical properties of electronic materials. The research includes semiconductor materials, superconductor materials and so on.